Dallas Company needs a flexible budget. Prepare a schedule showing the contribution margin and operating income at each activity level. Use the following data for possible sales/ production levels of 7,000, 10,000 and 15,000 Sales price $24.00 per unit Variable costs: Manufacturing Administrative Selling $12.00 per unit $3.00 per unit $1.00 per unit Fixed costs: Manufacturing Administrative $60,000 $20,000 7,000 10,000 15,000